1-6 September 2019
Lanzhou
Asia/Shanghai timezone
The deadline for the ICIS 2019 manuscript submission is extended to September 30. All oral presentations have been uploaded on the page of 'timetable'.

Commissioning of the RF H- source in CSNS

3 Sep 2019, 15:40
20m
Lanzhou

Lanzhou

No. 1 Beibinhe East Road, Chengguan District, Lanzhou
Contributed oral

Speaker

Dr Weidong Chen (Institute of High Energy Physics (IHEP), Chinese Academy of Science.)

Description

China Spallation Neutron Source (CSNS) has started to serve the users since March of 2018. To upgrade the beam power to 500 kW and improve the performance of ion source, an RF coupled H$^-$ source is under development. The source has a Si$_3$N$_4$ ceramic plasma chamber surrounded by a 4.5-turn antenna. The plasma is ignited by a pulsed DC spark gap and then driven by a 2 MHz solid-state amplifier with a repetition rate of 25 Hz. The commissioning of the source started in the January of 2019. When un-cesiated, it produced more than 30 mA beam at an RF power of 32 kW and pulse width of 450 $\mu$s. Further improvements are still ongoing.

Category of your contribution Negative ion sources

Primary author

Dr Weidong Chen (Institute of High Energy Physics (IHEP), Chinese Academy of Science.)

Co-authors

Mr Hui Li (University of Chinese Academy of Sciences.) Ms Renli Zhu (University of Chinese Academy of Sciences.) Xiuxia Cao Yongjia Lv Yongchuan Xiao Shengjin Liu (Institute of High Energy Physics (IHEP), Chinese Academy of Science) Kangjia Xue (Institute of High Energy Physics (IHEP), Chinese Academy of Science) Prof. Huafu Ouyang (Institute of high energy physics (IHEP), CAS.)

Presentation Materials

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